NASP/cuda-samples
85
0
Fork 0
mirror of https://github.com/NVIDIA/cuda-samples.git synced 2026-10-25 22:28:17 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'master' into cuda_a_dev

Browse Source
This commit is contained in:
Rob Armstrong
2025-04-09 08:33:37 -07:00
parent d00076a7c1 0345908807
commit 278f4adbd2
24 changed files with 389 additions and 1279 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
Samples/0_Introduction/simpleIPC/simpleIPC.cu
View File

@@ -99,8 +99,21 @@ static void childProcess(int id)
std::vector<void *> ptrs;
std::vector<cudaEvent_t> events;
std::vector<char> verification_buffer(DATA_SIZE);
char pidString[20] = {0};
char lshmName[40] = {0};
if (sharedMemoryOpen(shmName, sizeof(shmStruct), &info) != 0) {
// Use parent process ID to create a unique shared memory name for Linux multi-process
#ifdef __linux__
pid_t pid;
pid = getppid();
snprintf(pidString, sizeof(pidString), "%d", pid);
#endif
strcat(lshmName, shmName);
strcat(lshmName, pidString);
printf("CP: lshmName = %s\n", lshmName);
if (sharedMemoryOpen(lshmName, sizeof(shmStruct), &info) != 0) {
printf("Failed to create shared memory slab\n");
exit(EXIT_FAILURE);
}
@@ -195,10 +208,23 @@ static void parentProcess(char *app)
std::vector<void *> ptrs;
std::vector<cudaEvent_t> events;
std::vector<Process> processes;
char pidString[20] = {0};
char lshmName[40] = {0};
// Use current process ID to create a unique shared memory name for Linux multi-process
#ifdef __linux__
pid_t pid;
pid = getpid();
snprintf(pidString, sizeof(pidString), "%d", pid);
#endif
strcat(lshmName, shmName);
strcat(lshmName, pidString);
printf("PP: lshmName = %s\n", lshmName);
checkCudaErrors(cudaGetDeviceCount(&devCount));
if (sharedMemoryCreate(shmName, sizeof(*shm), &info) != 0) {
if (sharedMemoryCreate(lshmName, sizeof(*shm), &info) != 0) {
printf("Failed to create shared memory slab\n");
exit(EXIT_FAILURE);
}